DETERMINATION OF BODY COMPOSITION BY BIO-IMPEDANCE ANALYSIS IN YOUNG STUDENTS

Abstract

Using experimental data for adults (a total number of adults examined -236 out of which 74 male and 162 female students at Yanka Kupala State University of Grodno, Belarus) comparisons between the fatty mass body determined by a bio-impedance analysis method, and the body mass index (Quetelet's index) calculated on the basis of anthropometrical measurements have been carried out. A statistical calculation of the experimental data has been applied. At a stage of the specification pair exponential regression has been selected. Its parameters were estimated by method of the least squares. The statistical importance of the equation was verified using the determination coefficient and Fischer’s criterion. The correlation coefficient based on the experimental data between the fatty mass body and Quetelet's index is b =0.042. The analysis showed that deviations when calculating the same object using the coefficients as provided in literature can reach 30%. For group of male students the parameters determined by anthropometrical and electric characteristics of the person have been analysed. The analysis revealed that relative fatty mass characterizes norm of a body state more precisely in comparison to the body mass index.